Back to EveryPatent.com
United States Patent | 5,613,225 |
Charas | March 18, 1997 |
A radio module for a radio base station of a mobile radio system which transmits and receives radio signals from stationary or moving mobile radio stations over given frequencies. A module comprises an antenna part and a transceiver part of given mechanical construction. Each module of a base station transmits and receives over a given specific frequency which may be different when transmitting and receiving but which is not the same frequency as that used by any other module in the station. A radio base structure is comprised of a plurality of modules, each having its own specific or individual transmitting and receiving frequency and being provided with suppression means which prevent a module from disturbing neighboring modules. A radio base structure having diversity reception is also provided.
Inventors: | Charas; Philippe (Upplands Vasby, SE) |
Assignee: | Telefonaktiebolaget LM Ericsson (Stockholm, SE) |
Appl. No.: | 149532 |
Filed: | November 9, 1993 |
Nov 09, 1992[SE] | 9203335 |
Current U.S. Class: | 455/103; 343/853; 455/128; 455/129; 455/300 |
Intern'l Class: | H04B 001/03 |
Field of Search: | 343/700 MS File,853 361/816,818,730,66 455/56.1,89,90,106,103,101,128,129,346,347,349,300 |
4342002 | Jul., 1982 | Gabr | 361/730. |
4392242 | Jul., 1983 | Kai. | |
4680591 | Jul., 1987 | Axford et al. | 343/853. |
4694484 | Sep., 1987 | Atkinson et al. | |
4716493 | Dec., 1987 | Zelkowitz | 361/876. |
4719530 | Jan., 1988 | Berdanos | 361/66. |
4837858 | Jun., 1989 | Ablay | 455/17. |
4868890 | Sep., 1989 | Lennartsson. | |
4933680 | Jun., 1990 | Shapiro et al. | 343/853. |
4987425 | Jan., 1991 | Zahn et al. | 343/853. |
5019829 | May., 1991 | Heckman et al. | 343/853. |
5099254 | Mar., 1992 | Tsukii et al. | 343/853. |
5126705 | Jun., 1992 | Carnevali et al. | 343/853. |
5175878 | Dec., 1992 | Davis et al. | 455/103. |
5216435 | Jun., 1993 | Herata et al. | 343/853. |
5327152 | Jul., 1994 | Kruger et al. | 343/853. |
5369552 | Jan., 1994 | Barnes et al. | 361/816. |
5382959 | Jan., 1995 | Pette et al. | 343/700. |
Foreign Patent Documents | |||
0439936A2 | Aug., 1991 | EP. |